/* ===================================================================
   MOPADI Annotation Platform — Main Stylesheet
   =================================================================== */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: #1a1a1a;
  background: #f7f7f7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Section accent colours (clinical palette) --- */
.sec-0  { --sec-color: #4A7FA5; }
.sec-1  { --sec-color: #4A9E8E; }
.sec-2  { --sec-color: #6B7BC4; }
.sec-3  { --sec-color: #A06BC4; }
.sec-4  { --sec-color: #4E9E7A; }
.sec-5  { --sec-color: #7A9E4E; }
.sec-6  { --sec-color: #C4836B; }
.sec-7  { --sec-color: #C4A86B; }
.sec-8  { --sec-color: #6B8EC4; }
.sec-9  { --sec-color: #6BC4B8; }

/* --- Header --- */
.site-header {
  background: #fff;
  color: #1a1a1a;
  padding: 12px 24px;
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid #e4e4e4;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1320px;
  width: 100%;
  margin: 0 auto;
}

.site-title-link {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.site-logo {
  height: 32px;
  width: 32px;
  object-fit: cover;
  border-radius: 50%;
}

.site-title {
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: .01em;
  color: #444;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.expert-badge {
  font-size: .8rem;
  background: #f0f0f0;
  color: #555;
  padding: 3px 10px;
  border-radius: 12px;
  border: 1px solid #e0e0e0;
}

.elapsed-timer {
  font-size: .8rem;
  color: #aaa;
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  min-width: 56px;
  text-align: right;
}

.btn-pause {
  font-size: .8rem;
  font-weight: 600;
  color: #888;
  text-decoration: none;
  padding: 4px 12px;
  border-radius: 12px;
  border: 1px solid #ddd;
  background: #fff;
  letter-spacing: .01em;
  transition: color .15s, border-color .15s;
}
.btn-pause:hover {
  color: #333;
  border-color: #bbb;
}

/* --- Page layout (sidebar + main) --- */
.page-layout {
  flex: 1;
  display: flex;
  align-items: flex-start;
  max-width: 1320px;
  width: 100%;
  margin: 0 auto;
}

/* --- Progress sidebar --- */
.progress-sidebar {
  width: 265px;
  flex-shrink: 0;
  position: -webkit-sticky;
  position: sticky;
  top: 61px; /* header height */
  max-height: calc(100vh - 61px);
  overflow-y: auto;
  padding: 20px 12px 20px 16px;
  border-right: 1px solid #e8e8e8;
}

.sidebar-legend {
  font-size: .68rem;
  color: #bbb;
  margin: 12px 0 0 4px;
  padding-top: 10px;
  border-top: 1px solid #eee;
}

.sidebar-heading {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #aaa;
  margin: 0 0 10px 4px;
}

.sidebar-group-label {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: #bbb;
  margin: 10px 0 3px 4px;
  padding-top: 10px;
  border-top: 1px solid #efefef;
}
.sidebar-group-label--first {
  border-top: none;
  margin-top: 0;
  padding-top: 0;
}

.sidebar-section {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border-radius: 6px;
  text-decoration: none;
  color: #444;
  font-size: .8rem;
  line-height: 1.3;
  margin-bottom: 2px;
  transition: background .12s;
}
.sidebar-section:hover { background: #f0f0f0; }
.sidebar-section--active { background: #eef2ff; color: #3b4ec8; font-weight: 600; }
.sidebar-section--done { color: #888; }

.sidebar-section-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sidebar-section-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-section-badges {
  display: grid;
  grid-template-columns: 44px 42px;
  gap: 3px;
  flex-shrink: 0;
}

.sidebar-badge {
  font-size: .65rem;
  font-weight: 600;
  padding: 1px 5px;
  white-space: nowrap;
  border-radius: 4px;
  background: #ececec;
  color: #999;
  letter-spacing: .01em;
  text-decoration: none;
  transition: filter .12s;
}
span.sidebar-badge:hover {
  filter: brightness(0.9);
  cursor: pointer;
}
.sidebar-badge--lock {
  background: transparent;
  color: #bbb;
  font-size: .75rem;
  padding: 0;
}
.sidebar-badge--done {
  background: #d1fae5;
  color: #059669;
}
.sidebar-badge--warn {
  background: transparent;
  color: #e67e22;
  font-size: .85rem;
  padding: 0;
}

/* --- Main content --- */
.main-content {
  flex: 1;
  min-width: 0;
  padding: 36px 20px;
}

/* --- Footer --- */
.site-footer {
  background: #fff;
  border-top: 1px solid #e4e4e4;
  text-align: center;
  font-size: .78rem;
  color: #aaa;
  padding: 12px;
}

/* --- Card --- */
.card {
  background: #fff;
  border-radius: 6px;
  border: 1px solid #e4e4e4;
  padding: 40px 44px;
}

.card-center {
  max-width: 680px;
  margin: 0 auto;
}

.remaining-list {
  text-align: left;
  margin: 8px 0 20px;
  padding-left: 20px;
  color: #555;
  font-size: .9rem;
  line-height: 1.8;
}

/* --- Typography --- */
h1 { font-size: 1.8rem; margin-top: 0; }
h2 { font-size: 1.4rem; margin-top: 0; }
h3 { font-size: 1.1rem; }

.lead {
  font-size: 1.05rem;
  color: #444;
}

.section-counter {
  font-size: .85rem;
  color: #888;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 4px;
}

.description {
  color: #555;
  margin-bottom: 20px;
}

hr { border: none; border-top: 1px solid #eee; margin: 24px 0; }

/* --- Info box --- */
.info-box {
  background: #f0f4ff;
  border-left: 4px solid #4a6fa5;
  padding: 14px 18px;
  border-radius: 4px;
  margin: 20px 0;
}
.info-box p { margin: 4px 0; }

/* --- Task list on index page --- */
.task-list {
  padding-left: 20px;
  color: #444;
}
.task-list li { margin-bottom: 8px; }

/* --- Form elements --- */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-group input[type="text"] {
  width: 100%;
  padding: 10px 14px;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  transition: border-color .2s;
}

.form-group input[type="text"]:focus {
  outline: none;
  border-color: #4a6fa5;
  box-shadow: 0 0 0 3px rgba(74,111,165,.2);
}

.form-group small {
  display: block;
  color: #777;
  margin-top: 5px;
  font-size: .85rem;
}

.error {
  color: #c0392b;
  font-weight: 600;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 10px 22px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s, transform .1s;
}

.btn:active { transform: scale(.97); }

.btn-primary {
  background: #4a6fa5;
  color: #fff;
}
.btn-primary:hover { background: #3a5f95; }

.btn-secondary {
  background: #fff;
  color: #555;
  border: 1px solid #ccc;
}
.btn-secondary:hover { background: #f0f0f0; border-color: #aaa; }

.btn-large {
  padding: 14px 36px;
  font-size: 1.1rem;
}

/* Real / Synthetic buttons */
.rating-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin: 28px 0 10px;
}

.task1-back-row {
  display: flex;
  justify-content: center;
  margin-top: 12px;
  min-height: 38px;
}

.btn-real {
  background: #4a8c6a;
  color: #fff;
  padding: 16px 0;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 5px;
  width: 180px;
  text-align: center;
  letter-spacing: .01em;
}
.btn-real:hover { background: #3d7a5a; }

.btn-synthetic {
  background: #9e5252;
  color: #fff;
  padding: 16px 0;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 5px;
  width: 180px;
  text-align: center;
  letter-spacing: .01em;
}
.btn-synthetic:hover { background: #8a4444; }

/* Keyboard badge inside rating buttons */
.btn-real .key-badge,
.btn-synthetic .key-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: rgba(255,255,255,.25);
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 4px;
  font-size: .8rem;
  font-weight: 700;
  font-family: monospace;
  margin-left: 10px;
  vertical-align: middle;
  line-height: 1;
}

.keyboard-hint {
  text-align: center;
  color: #bbb;
  font-size: .8rem;
  letter-spacing: .02em;
}

kbd {
  background: #f0f0f0;
  border: 1px solid #d8d8d8;
  border-radius: 3px;
  padding: 2px 6px;
  font-size: .82em;
  font-family: monospace;
  color: #444;
}

/* --- Annotation page layout --- */
@keyframes pageFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.annotation-page {
  animation: pageFadeIn 0.15s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* --- Progress bar --- */
.progress-header {
  width: 100%;
  max-width: 800px;
  margin-bottom: 24px;
}

.progress-header--total {
  margin-bottom: 10px;
}

.progress-pct--total {
  color: #888;
  font-weight: 500;
}

.progress-bar-inner--total {
  background: #c8d8e8 !important;
  animation: none !important;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 7px;
}

.progress-label {
  font-size: .8rem;
  color: #888;
  letter-spacing: .02em;
  text-transform: uppercase;
}

.progress-pct {
  font-size: .8rem;
  font-weight: 600;
  color: var(--sec-color, #4a6fa5);
}

.progress-bar-outer {
  width: 100%;
  height: 3px;
  background: #eee;
  border-radius: 2px;
  overflow: hidden;
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}

.progress-bar-inner {
  height: 100%;
  background: linear-gradient(
    90deg,
    var(--sec-color, #4a6fa5) 25%,
    color-mix(in srgb, var(--sec-color, #4a6fa5) 60%, white) 50%,
    var(--sec-color, #4a6fa5) 75%
  );
  background-size: 200% auto;
  animation: shimmer 2s linear infinite;
  border-radius: 2px;
  transition: width .4s ease;
  min-width: 3px;
}

/* --- Image display --- */
.image-container {
  position: relative;
  background: #f0f0f0;
  border-radius: 4px;
  border: 1px solid #e0e0e0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom: 8px;
  cursor: crosshair;
}

.image-container img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  border-radius: 3px;
  transition: transform .25s ease;
}

.image-container:hover img {
  transform: scale(1.12);
}

.image-spinner {
  position: absolute;
  color: #888;
  font-size: .95rem;
}

/* --- Task 2 matrix layout --- */
.task2-matrix-form {
  width: 100%;
  max-width: 1200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.task2-images {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: nowrap;
  width: 100%;
}

.task2-images--row {
  align-items: flex-start;
}

.task2-img-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1 1 0;
  min-width: 0;
  max-width: 200px;
}

/* Fixed-size container so all 4 images are equal width */
.task2-img-fixed {
  width: 100% !important;
  aspect-ratio: 1;
  cursor: default;
}

.task2-img-fixed img {
  width: 100% !important;
  height: 100% !important;
  object-fit: contain;
}

.task2-img-label {
  font-size: .78rem;
  color: #777;
  margin: 5px 0 0;
  text-align: center;
  letter-spacing: .01em;
}

.task2-img-label--annotate {
  font-weight: 600;
}

.task2-img-label--row1 {
  color: #c07a30;
}

.task2-img-label--row2 {
  color: #4a6fa5;
}

.task2-img-col--row1 .task2-img-fixed {
  outline: 3px solid #c07a30;
  border-radius: 3px;
}

.task2-img-col--row2 .task2-img-fixed {
  outline: 3px solid #4a6fa5;
  border-radius: 3px;
}

.task2-img-label--context {
  color: #bbb;
  font-style: italic;
}


.task2-table-wrap {
  width: 100%;
  overflow-x: auto;
}

.feature-hint {
  font-size: .85rem;
  color: #888;
  margin-top: 0;
  margin-bottom: 12px;
}

.feature-matrix {
  width: 100%;
  border-collapse: collapse;
  table-layout: auto;
  background: #fff;
  border: 1px solid #e4e4e4;
  border-radius: 6px;
  overflow: hidden;
}

.feature-matrix th,
.feature-matrix td {
  padding: 0;
  text-align: center;
  vertical-align: middle;
  border: 1px solid #eee;
}

.feat-col-header {
  padding: 8px 6px;
  background: #f8f8f8;
  width: 90px;
  vertical-align: top;
}

.feat-col-label {
  display: block;
  font-size: .72rem;
  font-weight: 600;
  color: #555;
  letter-spacing: .01em;
  white-space: normal;
  word-break: break-word;
  text-align: center;
  line-height: 1.3;
}

.feat-row-header {
  padding: 12px 14px;
  text-align: left !important;
  font-size: .85rem;
  font-weight: 600;
  color: #444;
  background: #f8f8f8;
  white-space: nowrap;
  width: 100px;
}

.feat-row-header--row1 {
  color: #c07a30;
  border-left: 4px solid #c07a30;
}

.feat-row-header--row2 {
  color: #4a6fa5;
  border-left: 4px solid #4a6fa5;
}

.feat-cell {
  height: 48px;
}

.feat-cell input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: #4a6fa5;
}

.feature-matrix tbody tr:hover {
  background: #f5f9ff;
}

.other-text-wrap {
  margin-top: 10px;
  font-size: .9rem;
  color: #555;
}

.other-text-wrap label {
  display: block;
  font-weight: 600;
  margin-bottom: 4px;
}

.other-text-wrap textarea {
  width: 100%;
  max-width: 480px;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: .95rem;
  resize: vertical;
}

.task2-submit-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
}

/* --- Animated entry --- */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fade-up .35s ease both;
}

/* --- Animated SVG checkmark --- */
.check-svg {
  display: block;
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
}

@keyframes draw-circle {
  to { stroke-dashoffset: 0; }
}
@keyframes draw-check {
  to { stroke-dashoffset: 0; }
}

.check-circle {
  fill: none;
  stroke: #2e9e5e;
  stroke-width: 2;
  stroke-dasharray: 157;
  stroke-dashoffset: 157;
  animation: draw-circle .45s cubic-bezier(.65,0,.45,1) forwards;
}
.check-path {
  fill: none;
  stroke: #2e9e5e;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  animation: draw-check .3s ease .45s forwards;
}

/* keep old check-icon for any fallback */
.check-icon {
  font-size: 3rem;
  color: #4a6fa5;
  text-align: center;
  margin-bottom: 8px;
}

/* --- Mini summary (section complete) --- */
.mini-summary {
  display: flex;
  gap: 32px;
  justify-content: center;
  margin: 24px 0;
}

.summary-stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: #4a6fa5;
}

.stat-label {
  font-size: .85rem;
  color: #777;
}

/* --- Summary table (study complete) --- */
.summary-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: .95rem;
}

.summary-table th, .summary-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid #eee;
}

.summary-table th {
  background: #f5f5f5;
  font-weight: 600;
}

.thank-you-note {
  font-style: italic;
  color: #666;
  margin-top: 24px;
  text-align: center;
}

code {
  background: #f0f0f0;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: .9em;
}

/* --- Toast notifications --- */
@keyframes toast-in {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes toast-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}

.toast {
  position: fixed;
  top: 68px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 500;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 12px 20px 12px 16px;
  font-size: .9rem;
  color: #333;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,.08);
  animation: toast-in .3s ease both, toast-out .4s ease 4s forwards;
}

.toast--resume {
  border-left: 3px solid #4A9E8E;
}

.toast-close {
  background: none;
  border: none;
  cursor: pointer;
  color: #aaa;
  font-size: .85rem;
  padding: 0;
  line-height: 1;
}
.toast-close:hover { color: #555; }